kernel/linux.git/drivers/input/touchscreen/sur40.c, branch linux-4.13.y

Input: sur40 - fix bad endianness handling in sur40_poll

2017-04-05T15:52:36+00:00

sparse says: sur40.c:372:40: warning: restricted __le32 degrades to integer the header's data is __le32 so we need to convert it before comparing. Signed-off-by: Martin Kepplinger Signed-off-by: Dmitry Torokhov

Input: sur40 - validate number of endpoints before using them

2017-03-16T20:56:54+00:00

Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer or accessing memory that lie beyond the end of the endpoint array should a malicious device lack the expected endpoints. Fixes: bdb5c57f209c ("Input: add sur40 driver for Samsung SUR40... ") Signed-off-by: Johan Hovold Cc: stable@vger.kernel.org # 3.13 Signed-off-by: Dmitry Torokhov

[media] sur40: properly report a single frame rate of 60 FPS

2016-08-24T13:07:06+00:00

The device hardware is always running at 60 FPS, so report this both via PARM_IOCTL and ENUM_FRAMEINTERVALS. [hans.verkuil@cisco.com: fix suspect indent checkpatch warning] [mchehab@s-opensource.com: fix a trivial merge conflict] Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] Input: sur40 - use new V4L2 touch input type

2016-08-23T19:34:29+00:00

Support both V4L2_TCH_FMT_TU08 and V4L2_PIX_FMT_GREY for backwards compatibility. Signed-off-by: Nick Dyer Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Acked-by: Dmitry Torokhov

[media] sur40: drop unnecessary format description

2016-07-08T19:16:58+00:00

Don't fill in the format description. This is now done in the V4L2 core to ensure consistent descriptions. Signed-off-by: Hans Verkuil Acked-by: Nick Dyer Signed-off-by: Mauro Carvalho Chehab

[media] sur40: fix occasional oopses on device close

2016-07-08T19:16:57+00:00

Closing the V4L2 device sometimes triggers a kernel oops. Present patch fixes this. Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Hans Verkuil Cc: # for v4.2 and up Signed-off-by: Mauro Carvalho Chehab

[media] sur40: lower poll interval to fix occasional FPS drops to ~56 FPS

2016-07-08T19:16:56+00:00

The framerate sometimes drops below 60 Hz if the poll interval is too high. Lowering it to the minimum of 1 ms fixes this. Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Hans Verkuil Cc: # for v4.2 and up Signed-off-by: Mauro Carvalho Chehab

[media] vb2: replace void alloc_ctxs by struct device alloc_devs

2016-07-08T17:45:07+00:00

Make this a proper typed array. Drop the old allocate context code since that is no longer used. Note that the memops functions now get a struct device pointer instead of the struct device ** that was there initially (actually a void pointer to a struct containing only a struct device pointer). This code is now a lot cleaner. Signed-off-by: Hans Verkuil Reviewed-by: Laurent Pinchart Cc: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] sur40: set q->dev instead of allocating a context

2016-07-08T17:35:23+00:00

Stop using alloc_ctx and just fill in the device pointer. Signed-off-by: Hans Verkuil Cc: Florian Echtler Signed-off-by: Mauro Carvalho Chehab

Input: sur40 - fix DMA on stack

2016-03-24T00:29:30+00:00

During the initialisation the driver uses a buffer on the stack for DMA. That violates the cache coherency rules. The fix is to allocate the buffer with kmalloc(). Signed-off-by: Oliver Neukum Signed-off-by: Dmitry Torokhov